McCulloch Chain Saws

[machinisttx]

So I had some free time this evening and decided to go ahead and put the new 20" B/C on the SP60 and try to figure out why it wasn't oiling. I got the new B/C on it, then opened up the front cover to have a look at the oil pickup and the pump. Pickup was clean and the oil tank was clean as well. probably be a stuck piston, right? Apparently not. I pulled the pump off and played with the piston. It wasn't stuck, but it didn't move quite freely either. Now I figure I might as well clean it up, make sure the passages are clear, and then reassemble/reinstall. I managed to drop the oiler piston return spring and spent ten minutes searching for it. :censored: I put everything back together and ran the saw for about five minutes. Still not oiling. :bang: The adjustment screw is backed all the way out, allowing for full travel of the piston. Maybe I'm wrong, but I'm thinking it should have oil dripping off at idle and throwing a mist when the throttle is openend at that setting(still don't have a shop manual). I'm also guessing that the pump is vacuum operated, and I should probably pull the carb to verify that nothing is blocked by gasket material or whatever.

Alternatively, I'm debating pulling the known-to-be-good pump off my 10-10a and trying it on the SP60. So far I have Mccullochs that don't run, but have good oilers and B/C's and macs that run, but either don't oil or need an unobtainium air filter.

 

[fechtichmac]

So I had some free time this evening and decided to go ahead and put the new 20" B/C on the SP60 and try to figure out why it wasn't oiling. I got the new B/C on it, then opened up the front cover to have a look at the oil pickup and the pump. Pickup was clean and the oil tank was clean as well. probably be a stuck piston, right? Apparently not. I pulled the pump off and played with the piston. It wasn't stuck, but it didn't move quite freely either. Now I figure I might as well clean it up, make sure the passages are clear, and then reassemble/reinstall. I managed to drop the oiler piston return spring and spent ten minutes searching for it. :censored: I put everything back together and ran the saw for about five minutes. Still not oiling. :bang: The adjustment screw is backed all the way out, allowing for full travel of the piston. Maybe I'm wrong, but I'm thinking it should have oil dripping off at idle and throwing a mist when the throttle is openend at that setting(still don't have a shop manual). I'm also guessing that the pump is vacuum operated, and I should probably pull the carb to verify that nothing is blocked by gasket material or whatever.

Alternatively, I'm debating pulling the known-to-be-good pump off my 10-10a and trying it on the SP60. So far I have Mccullochs that don't run, but have good oilers and B/C's and macs that run, but either don't oil or need an unobtainium air filter.

Hi!
you have to take a look on the manual oiler.This sometimes has an airleak on its gasket(loose screws) or the O-ring on the piston is bad.
Any airleak on the manual oiler will the auto oiler not let suck in.

E.

 

[Warped5]

So I had some free time this evening and decided to go ahead and put the new 20" B/C on the SP60 and try to figure out why it wasn't oiling. I got the new B/C on it, then opened up the front cover to have a look at the oil pickup and the pump. Pickup was clean and the oil tank was clean as well. probably be a stuck piston, right? Apparently not. I pulled the pump off and played with the piston. It wasn't stuck, but it didn't move quite freely either. Now I figure I might as well clean it up, make sure the passages are clear, and then reassemble/reinstall. I managed to drop the oiler piston return spring and spent ten minutes searching for it. :censored: I put everything back together and ran the saw for about five minutes. Still not oiling. :bang: The adjustment screw is backed all the way out, allowing for full travel of the piston. Maybe I'm wrong, but I'm thinking it should have oil dripping off at idle and throwing a mist when the throttle is openend at that setting(still don't have a shop manual). I'm also guessing that the pump is vacuum operated, and I should probably pull the carb to verify that nothing is blocked by gasket material or whatever.

Alternatively, I'm debating pulling the known-to-be-good pump off my 10-10a and trying it on the SP60. So far I have Mccullochs that don't run, but have good oilers and B/C's and macs that run, but either don't oil or need an unobtainium air filter.

Here's a link to a thread Mark did on 10 Series oilers: http://www.arboristsite.com/chainsaw/190113.htm

 

[hwrdpromac7900]

8 pin rim

Where does one find a eight pin rim for a ProMac 8200?

 

[machinisttx]

Hi!
you have to take a look on the manual oiler.This sometimes has an airleak on its gasket(loose screws) or the O-ring on the piston is bad.
Any airleak on the manual oiler will the auto oiler not let suck in.

The manual oiler isn't pushing much oil out, so maybe it's a bad o-ring.

E.

Here's a link to a thread Mark did on 10 Series oilers: http://www.arboristsite.com/chainsaw/190113.htm

Thanks! I have a partial service manual, but I don't think it has any info on the oiler in it.

 

[joeymt33]

Where does one find a eight pin rim for a ProMac 8200?

If your looking for a .404 pitch, it's a oregon part number 13313

If your looking for a 3/8 pitch It's a oregon part number 22273. These two sprockets will only work if your saw has the standard 7 spline drum. If yours has the small 7 spline drum, you'll have to change the drum to the larger one.

Joey.

 

[joeymt33]

Where does one find a eight pin rim for a ProMac 8200?

BTW, show us a pic of that 8200. We don't see those much. Here's mine.....

 

[hwrdpromac7900]

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[hwrdpromac7900]

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[rwoods]

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Nice saw. Ron

 

[rwoods]

Pm8200

Here's mine:

My first 82cc MAC. Ron

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[joeymt33]

Here's mine:

My first 82cc MAC. Ron

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I forgot, what's wrong with that saw?

 

[rwoods]

It's lonely and feels out of place with all those PM800s. Seriously, I believe it needs rings as the compression is only 135ish cold and it doesn't like to restart after the first tank. My PM700 behaves pretty much the same. Its cold compression is almost identical IIRC. If shipping wasn't so high, I would send the PM8200 to Mark and see if he would trade it for one of his PM800s at his choice since the uniqueness of the PM8200 has no special appeal to me and he wants one. Ron

 

[Eccentric]

BTW, show us a pic of that 8200. We don't see those much. Here's mine.....

Sweet. I could have bought a NEW one of those at an old shop here around 1994 or so (along with the new PM4300 that was sitting next to it). Wasn't smart enough.

 

[joeymt33]

It's lonely and feels out of place with all those PM800s. Seriously, I believe it needs rings as the compression is only 135ish cold and it doesn't like to restart after the first tank. My PM700 behaves pretty much the same. Its cold compression is almost identical IIRC. If shipping wasn't so high, I would send the PM8200 to Mark and see if he would trade it for one of his PM800s at his choice since the uniqueness of the PM8200 has no special appeal to me and he wants one. Ron

If you work out the details, I could make the delivery. I drive by both of y'all's locations frequently.

 

[machinisttx]

I don't recall if I already asked or not here, did ask in the beg for manuals thread. Anyone have service manuals for the SP60 or Power Mac 6? Probably a long shot, but my uncle's got a 35 and a 610 he could probably use manuals for too. :cool2:

 

[joeymt33]

I don't recall if I already asked or not here, did ask in the beg for manuals thread. Anyone have service manuals for the SP60 or Power Mac 6? Probably a long shot, but my uncle's got a 35 and a 610 he could probably use manuals for too. :cool2:

PM me

 

[rwoods]

If you work out the details, I could make the delivery. I drive by both of y'all's locations frequently.

Thanks. Ron

 

[machinisttx]

Picked up another 10-10 today, a pro model. Possibly just a parts saw. Passed on a McCulloch 15 that appeared to be complete for $30.

Edit: I forgot, there was also an old saw there that the guy said was a poulan. Paint was white, design was upright, similar to the mac 15. If anyone is interested, I'll find the craigslist ad and post a link.

 

[homelitejim]

while no where as cool as a 8200, I did pick up a few yellow saws today.

The big one is a 790 and if I can free it up it will get built with the spare 740 or it will be parts for my 740. the other one is a regular 10-10 in rough shape, I pretty much grabbed it for its brake parts.